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Plastic machinery injection molding machine hydraulic system in use should pay attention to what?
 
1 users should understand the plastic mechanical injection molding machine hydraulic system works, familiar with a variety of operations and adjust the handle position and rotation and so on.
2 before the car should check the system on the adjustment handle, whether the hand wheel was unrelated to the staff, the electrical switch and the location of the trip switch is normal, the host of the installation of the tool is correct and firm, and then the guide rod and the exposed part of the piston Wipe up before driving.
3 drive, the first start to control the hydraulic pump hydraulic circuit, no special control hydraulic pump, you can directly start the main hydraulic pump.
4 hydraulic oil to regularly check the replacement, for the new use of hydraulic equipment, the use of about 3 months that should be cleaned tank, replace the new oil. After every six months to 1 year for cleaning and oil change once.
5 work should always pay attention to oil, normal work, the tank oil temperature should not exceed 60 ℃. Excessive oil temperature should be managed to cool and use higher viscosity hydraulic oil. When the temperature is too low, should be preheated, or intermittent operation before running, so that the oil temperature gradually increased, and then enter the official working state.
6 Check the oil level to ensure that the system has enough oil.
7 The exhaust system should be exhausted and the system without exhaust should be operated several times to allow it to spontaneously discharge the gas.
8 tank should be sealed, the tank above the vent hole should be set up air filter to prevent dirt and moisture intrusion. Refueling should be carried out to clean the oil.
9 system should be configured according to the needs of coarse, fine filter, the filter should be regularly checked, cleaned and replaced.
10 on the adjustment of the pressure control components, generally first adjust the system pressure control valve ---- relief valve, from the pressure is zero when the opening, and gradually increase the pressure to achieve the required pressure value; and then adjust the pressure control of the circuit valve. The adjustment pressure of the safety relief valve of the main oil hydraulic pump is generally greater than 10% to 25% of the working pressure required for the actuator. Fast moving hydraulic pump pressure valve, the adjustment pressure is generally greater than the required pressure of 10% - 20%. If the pressure and supply pressure control oil and lubricating oil, the pressure should be maintained in the range of 0.3--0.6MPa. Pressure regulator adjustment pressure should generally be lower than the oil pressure 0.3 - 0.5MPa.
11 flow control valve from small flow to large flow, and should be gradually adjusted. Synchronous motion actuator flow control valve should be adjusted at the same time, to ensure the smoothness of movement.
Article link: in plastic online http://info.21cp.com/Jixie/Guonei/201710/1341495.htm
Date: 2017/10/23 Read:1366times
 
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